Military Assistance Command Vietnam Challenge Coin is an officially issued coin made for Vietnam veterans. Military Challenge Coins are one of the easiest ways to honor your service or someone else’s service and achievements. There is a whole culture around earning and collecting these coins. Coins are small memories and each of them has a story to share. This challenge coin measures 45 mm in diameter and has a metal alloy base. The Military Assistance Command Vietnam Challenge Coin would make for a great gift or just a conversation starter about your service. Would make for a great gift with both the holiday season coming and Veterans Day approaching us.